使用AWS-Developer考古題 -擺脫AWS Certified Developer Associate Exam (DVA-C02)考試苦惱
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AWS-Developer 認證能為開發人員帶來許多好處,包括增加市場競爭力和就業機會。它還可以幫助開發人員展示其在AWS服務和架構方面的專業知識,進而提高其工作的信心和可信度。此外,AWS-Developer 認證是其他AWS認證的先決條件,例如AWS Solutions Architect - Associate和Professional認證。
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AWS認證開發人員-副理證書適用於具有至少一年開發和維護基於AWS應用程序經驗的開發人員。該考試涵蓋多個主題,包括AWS核心服務、數據庫服務、部署和安全性。該認證證明了候選人使用AWS設計、開發和部署基於雲的解決方案的能力。
最新的 AWS Certified Developer AWS-Developer 免費考試真題 (Q108-Q113):
問題 #108
A company is migrating legacy internal applications to AWS. Leadership wants to rewrite the internal employee directory to use native AWS services. A developer needs to create a solution for storing employee contact details and high-resolution photos for use with the new application.
Which solution will enable the search and retrieval of each employee's individual details and high-resolution photos using AWS APIs?
- A. Use Amazon Cognito user pools to implement the employee directory in a fully managed software-as-a-service (SaaS) method.
- B. Encode each employee's contact information and photos using Base64. Store the information in an Amazon DynamoDB table using a sort key.
- C. Store employee contact information in an Amazon RDS DB instance with the photos stored in Amazon Elastic File System (Amazon EFS).
- D. Store each employee's contact information in an Amazon DynamoDB table along with the object keys for the photos stored in Amazon S3.
答案:D
問題 #109
A Developer created a new AWS account and must create a scalable AWS Lambda function that meets the following requirements for concurrent execution:
- Average execution time of 100 seconds
- 50 requests per second
Which step must be taken prior to deployment to prevent errors?
- A. Implement dead-letter queues to capture invocation errors
- B. Add an event source from Amazon API Gateway to the Lambda function
- C. Implement error handling within the application code
- D. Contact AWS Support to increase the concurrent execution limits
答案:D
解題說明:
Concurrent exectuion limit is 1000 but here we need 50x100=5000. We need 5k concurrent users and limite must be exceeded...
問題 #110
An organization is storing large files in Amazon S3, and is writing a web application to display meta-data about the files to end-users. Based on the metadata a user selects an object to download. The organization needs a mechanism to index the files and provide single-digit millisecond latency retrieval for the metadata.
What AWS service should be used to accomplish this?
- A. Amazon EC2
- B. Amazon DynamoDB
- C. AWS Lambda
- D. Amazon RDS
答案:B
解題說明:
Explanation
Amazon DynamoDB is a fast and flexible NoSQL database service for all applications that need consistent, single-digit millisecond latency at any scale. It is a fully managed database and supports both document and key-value data models. Its flexible data model and reliable performance make it a great fit for mobile, web, gaming, ad-tech, Internet of Things (IoT), and many other applications.
References:
問題 #111
A company's website runs on an Amazon EC2 instance and uses Auto Scaling to scale the environment during peak times. Website users across the world are experiencing high latency due to static content on the EC2 instance, even during non-peak hours.
Which combination of steps will resolve the latency issue? (Choose two.)
- A. Store the application's static content in Amazon S3.
- B. Host the application code on AWS Lambda.
- C. Scale vertically by resizing the EC2 instances.
- D. Double the Auto Scaling group's maximum number of servers.
- E. Create an Amazon CloudFront distribution to cache the static content.
答案:A,C
解題說明:
https://aws.amazon.com/getting-started/tutorials/deliver-content-faster/
問題 #112
A developer is refactoring a monolithic application. The application takes a POST request and performs several operations. Some of the operations are in parallel while others run sequentially. These operations have been refactored into individual AWS Lambda functions. The POST request will be processed by Amazon API Gateway.
How should the developer invoke the Lambda functions in the same sequence using API Gateway*?
- A. Use Amazon SNS to trigger the Lambda functions
- B. Use an AWS Step Functions state machine to orchestrate the Lambda functions.
- C. Use an AWS Step Functions activity to run the Lambda functions
- D. Use Amazon SQS to invoke the Lambda functions
答案:D
問題 #113
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